Juice extractor



L. H. SCURLOCK JUICE EXTRACTOR May 30, 1939.

Filed July 17, 1937 Patented May 30, 1939 UNITED STATES. PATENT OFFICEmmaiunsmn I Lewis a. sourlcc r. m m.

. Application Ill! 17, 1937, N0. 1;,145

'6 cm (Cl. 14H) This invention relates to machines or devices forextracting the juice from oranges and lemons 'and other kinds of fruit.

Generally stated, the object of the invention is to provide a novel andimproved construction and I Juice from the fruit.

It is also an object to provide certain details and features ofconstruction and combinations tending to increase the generalefllclency.and desirability of a fruit juice extractor of thisparticular character.

so To the foregoing and other useful ends, the

invention consists in matters hereinafter. set forth and claimed andshown in the accompanying drawing, in which Fig. 1 is a side elevationof a fruit juice ex- 26 tractor embodying the principles of theinvention.

Fig. 2 is a front elevation of the said extractor.

Fig. 3 is a sectional view, on a larger scale, of certain portions ofsaid extractor.

Fig. 4 is ,a horizontal section on line 4-4 in 0 Fig. 3 of the drawing.

As thus illustrated, referring to Figs. 1 to 4, inclusive, the inventioncomprises a stationary base or support 1 upon which the upright portion2 is supported, this upright portion having *5 a lower arm 3, and anupper arm 4, as shown.

The base I is adapted to receive a cup or other container 5, forreceiving the juice. I

The arm 3 is provided with a removable cup I having a discharge spout Ion the bottom thereof,

which spout removably fits an opening I in the said arm. The perforatedcone '9 is removably heldin said cup, to engage the flat side of anorange half, or a lemon half, in the ordinary manner.

The upper arm 4 has a vertical sleeve portion II, in which thecylindrical rack I l is movable up and down, this rack having separatelyformed circumferential annular teeth, and having a spiral groove l2, asshown. The inverted cup I3 is suitably fastened to the lower end of saidrack, and

the latter is moved up and down by the pinion l4, suitably journaled inthe arm I and provided with a handle I5 for the operation thereof. Ascrew it is inserted in the sleeve 4 to engage the 55 groove 12 in themanner shown.

Whenthe handle II is operated in a manner to cause the rack to movedownwardly, the screw It and the spiral groove I2 cooperate to cause theinverted movable cup I! to rotate about the axis thereof, so that thefruit is subjected to both 5 axial downward movement of the movable cupl3, and to rotation of the latter, thus more effectively extracting thejuice from the fruit.

While the drawing shows the cylindrical rack, member u in verticalposition, it is obvious that it 10 can be used more or lesshorizontally, if desired.

The combination of the two movements, it will be understood, is moreeifective to extract the juice from the fruit, as the orange half, orlemon half, or other fruit, is not only subjected to direct pressure andcompression, but is also subjected to a rotational rubbing action by therotation of the movable pressure member, because the cylindrlcal rackwith annular teeth can rotate on the pinion, and can do this while heldby the pinion 20 against axial movement, so far as the relativeengagement itself is concerned, for the teeth are annular and separate,and only the spiral groove and its engaging pin cause the rotation ofthe rack and the movable compression member. as

Thus in each form of the invention the groove is disposed laterally ofand parallel with the row of rack teeth. Also, in each form oftheinvention, the removable screw for engaging the groove is at all timesin engagement with some portion thereof. Obviously, the groove may beformed to provide the desired amount of rotation of the movable pressuremember. but as specifically shown it provides rotation for the fullstroke of said member. at

What I claim as my invention is:

1. A fruit juice extractor comprising a movable compression memberoperated axially and rotatively by a rack and pinion device, the lattercomprising a cylindrical rotary rack member 40 having separate annularteeth spaced apart and each in effect being an annular ring, withseparate annular spaces between them, a pinion mounted to engage saidrack, the latter being adapted to rotate while held against axial move-4 ment by said pinion, so far as the relative engagement of the rack andpinion is concerned, means for operating said pinion, and provisions forcausing rotation of the rack by the axial movement thereof, therebycausing said compression memso her to rotate while moving axially tocompress the fruit..

2. A structure as specified in claim 1, said provisions comprising aspiral groove on said rack, formed about the axis of the latter, cuttingas throughsaidteetlnandaflxedmeanstoenme,iAstructureasspeciiiedinclaimLsaidoomsaid groove. pression member beingconvex.

3.Astmctureasspecifledinclaiml,saidprotAstructureasspecinedinclaimLsaidteethvisions comprising a spiral groove on said not being formed in parallelplanes fixed relatively member, formed about the axis of the latter, andtoeachother, with the axiso! said rackmember 5 'a'nxed means to engagesaid groove. extending at right angles to said planes.

4.Astructureasspecifledinclaim1,saidcom pression member being concave. ILIWIB H. BCURLOCK.

